Solving Physics Questions

Running Head : PHYSICS QUESTIONS

Solving Physics Questions

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Solving Physics Questions

1 . In equation form , we can see a very striking similarity to gravitational and electric forces . Equations 1 and 2 show the gravitational and electric forces , respectively

Equation 1

Equation 2

From the two equations , we can see that the forces are inversely proportional to the square of the distance between the two bodies under consideration . Also , the forces

are proportional to the product of the magnitudes (i .e . mass of the bodies for gravitational force and charges of the particles for electric forces ) of the objects

While it was Newton that developed the relationship for gravitational forces between bodies , it was Coulomb who later developed a similar relation for electric particles and both relationships are subject to Gauss ' Law and are considered field forces (as opposed to contact forces ) according to Faraday . Furthermore , gravitational forces are always attractive . That is , the two bodies exhibiting gravitational forces on each other tend to pull the other body towards itself . While electric forces depend on the charges of the particle under consideration . Particles , or charged bodies , with different charges behave like as if governed by laws of gravitational forces (i .e . they attract each other , while particles with same charges repel , or push away , each other (Serway et al , 2006

2 . The fridge magnet (F ) is the source of a permanent magnetic field and not...